High severity · published Oct 12, 2026
CVE-2026-21124
Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code
8.6
CVSS
0.1%
EPSS
No
On KEV
Description
Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
Samsung Mobile Devices · Samsung Mobile
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21124
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21124
security.samsungmobile.com
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10
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